Unknown Caterpillar - South Stack Anglesey

Unknown Caterpillar - South Stack Anglesey

Observation - Unknown Caterpillar - South Stack Anglesey. Description: Dozens of caterpillars on and to the sides of the steps and path leading down to the bridge across to South Stack lighthouse. About 6-7cm long and moving rapidly as though 'on a mission' Cannot find the example in any of our books.

Dozens of caterpillars on and to the sides of the steps and path leading down to the bridge across to South Stack lighthouse. About 6-7cm long and moving rapidly as though 'on a mission' Cannot find the example in any of our books.